Blizzard revealed on September 24, 2026 that Diablo Immortal’s Spawn crossover, a limited-time event called Hellspawn’s Vengeance, runs from September 29 (after maintenance) until November 1, 2026. The details come from Blizzard’s own first look at the event, titled “The Hellspawn Arrives in Sanctuary.”
To clear up the headline: “the Hellspawn” is Spawn himself, Todd McFarlane’s comic antihero, not a new class. Nothing in Blizzard’s post adds a playable class. This is an event with its own activities, a boss raid, rewards and cosmetics, all timed to leave again in November.
What Is in Hellspawn’s Vengeance
Diablo Immortal players earn Vengeance Marks by finishing weekly tasks and taking part in two collaboration activities:
- Hellspawn’s Bane: a Spawn-themed version of the Survivors Bane mode where you use chains, a living cloak and necroplasmic energy against demon hordes. Partway through, you are dragged into Hell for a boss fight before returning to the battlefield powered up.
- The Eighth Circle: a raid for up to four players against Malebolgia, the demon lord who created Spawn. It has daily time goals and ranked rewards, and earning MVP four times in a party of three or more unlocks a unique cosmetic.
Vengeance Marks unlock the Hellspawn Arsenal weapon skins, six collaboration emotes, a Hellspawn avatar frame, Reinforced Immortal Keys, Legendary and Set equipment, and a 1-star copy of a new Legendary Gem, the Necroplasmic Totem. That gem wraps you in Necroplasm when you deal damage, boosting your damage for 6 seconds, eating harmful effects and firing exploding bolts that Burn nearby enemies.
Blizzard also showed a crimson cloak cosmetic called Hellspawn Guise and a Violator familiar transmorg that shapeshifts as it follows you. The post does not say how those two are obtained, so do not assume they are free until the patch notes land.
What Is Still to Come
Blizzard calls this “just your first look” and says full patch notes arrive on September 28, the day before the event starts. Its earlier Made to Suffer roadmap placed a Halloween event and a 30th anniversary event after the Spawn crossover, with the Nation in Agony storyline wrapping up at the end of the year.
What This Means for Players
If you play Diablo Immortal, the Necroplasmic Totem is the reward to target, since a gem stays in your build after the event is gone, and the Malebolgia raid rewards playing with a regular group. The window is about five weeks, so there is time, but the MVP cosmetic needs four MVP finishes in a party of at least three.
If your Diablo time goes to Diablo 4 instead, our Season 15 breakdown covers everything new in Season of Hell’s Legacy, and our guide to when Season 15 ends tells you how long you have left. Diablo 4 is also now playable on Switch 2 if you want Sanctuary on the go.
Source: Blizzard Entertainment, “The Hellspawn Arrives in Sanctuary,” Diablo Immortal news, September 24, 2026.